Family squabbles, meddling shareholders would paralyze most companies, but the spry media mogul brushes away such annoyances. In July son and heir apparent Lachlan quit his post as News Corp. deputy chief operating officer; Murdoch quickly replaced him with Fox News Chief Roger Ailes. Dismisses murky intentions of John Malone, who raised his stake in company to 18%. "We've frankly moved on." On cable, Fox News Channel (home to Forbes on Fox) routinely draws more viewers than archrival CNN. Fox movie studio tops at box office. Revenue at satellite unit DirecTV up 35% this year. Australian-born Oxford grad inherited Adelaide, Australia newspaper, made bigger fortune in the U.S. with more newspapers (New York Post, Chicago Sun Times), then Fox television in 1980. Became U.S citizen; now resides at new $44 million apartment on Fifth Avenue in Manhattan, city's most expensive apartment.